First Look at James Marsden and Ian McKellen on the Set of Marvel’s Avengers: Doomsday Leaks Online

Note: This article contains major spoilers for Marvel’s Avengers: Doomsday.

Marvel Studios has already announced that the X-Men are officially returning in the upcoming Avengers: Doomsday.

A recently leaked image shows the first look at James Marsden and Ian McKellen as Cyclops and Magneto on the set of Avengers: Doomsday, which is currently in production in the United Kingdom.

Also, another surprise for fans was that Marsden and Benedict Wong were also spotted together on set. Is Wong trying to recruit Cyclops into the Avengers to fight Doctor Doom (Robert Downey Jr.)? Check out the image below.

According to a source on X, UnBoxPHD has revealed that a spaceship set for Avengers: Doomsday is now under construction. The leaker has shared several images from the set.

At CinemaCon 2025, Marvel boss Kevin Feige said in a video message that the full cast for Avengers: Doomsday has not yet been revealed. He also confirmed the film will focus on the Avengers, Wakandans, Fantastic Four, Thunderbolts, and the original X-Men all fighting Doctor Doom.

Directed by Joe and Anthony Russo, the film is joined by longtime collaborator Stephen McFeely, who is penning the screenplay.

The film stars Downey Jr. as Doctor Doom, Paul Rudd as Ant-Man, Simu Liu as Shang-Chi, Tom Hiddleston as Loki, Florence Pugh as Yelena Belova, Danny Ramirez as Falcon, Sebastian Stan as Bucky Barnes, Winston Duke as M’Baku, Chris Hemsworth as Thor, Letitia Wright as Black Panther, Tenoch Huerta Mejía as Namor, Anthony Mackie as Captain America, David Harbour as Red Guardian, Wyatt Russell as U.S. Agent, and Hannah John-Kamen as Ghost. Ian McKellen as Magneto, Patrick Stewart as Professor X, Rebecca Romijn as Mystique, James Marsden as Cyclops, Kelsey Grammer as Beast, Alan Cumming as Nightcrawler, and Channing Tatum as Gambit. Pedro Pascal as Reed Richards (Mr. Fantastic), Vanessa Kirby as Sue Storm (Invisible Woman), Joseph Quinn as Johnny Storm (Human Torch), Ebon Moss-Bachrach as Ben Grimm (The Thing), and Lewis Pullman as Sentry.

Avengers: Doomsday will be the beginning of the end of the Marvel Cinematic Universe (MCU). As the multiverse nears total collapse, the Avengers must assemble to face their biggest challenge yet—incursions, catastrophic collisions between realities that could destroy the entire multiverse. Earth’s Mightiest Heroes must race against time to save their reality while confronting the powerful figure behind it all—Victor Von Doom (Downey Jr.).

Produced by Feige, Louis D’Esposito, and Russo Brothers will produce through their AGBO banner.

Avengers: Doomsday will hit theaters on May 1, 2026.